Drilling bit

• Main Authors: WANG ZHIHONG, LUO PEIYUAN
• Format: Patent
• Language: Chinese; English
• Published: 10.03.2020
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to a drilling bit. The drill comprises a drill rod, threads and a drill bit, threads are arranged on the periphery of the bottom end of the drill rod, a first mounting disc is welded to the top of the drill rod, a second mounting disc is arranged at the upper end of the first mounting disc, a drill bit is welded to the top of the second mounting disc, a protruding block is arranged on the periphery of the drill bit, a groove is formed in the periphery of the bottom end of the drill bit, and a wear-resisting layer is arranged on the outer surface. The drill bit can bereplaced conveniently, the drilling effect is good, chippings generated after the drill bit is broken through drilling can be discharged conveniently, the wear-resisting effect is good, and the drillbit is suitable for being widely used and popularized. 本实用新型涉及一种钻井钻头，包括钻杆、螺纹和钻头，所述钻杆底端外围设置有螺纹，所述钻杆顶部焊接有第一安装盘，所述第一安装盘上端设置有第二安装盘，所述第二安装盘顶部焊接有钻头，所述钻头外围设置有凸块，所述钻头底端外围设置有沟槽，所述钻头外表层设置有耐磨层。本实用新型能方便对钻头进行更换，钻进效果好，还能方便排出钻头钻碎后的碎屑，耐磨效果优良，